Trouble Shooting/Java Exceptions
DB엑세스 도중에 연결이 끊겼을때 imon을 통해 kibana로 exception 조회했을 때.
com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure The last packet successfully received from the server was 10 milliseconds ago. The last packet sent successfully to the server was 10 milliseconds ago. 위에러는 DB 작업을 하다가 서버와 연결이 끊긴 것. 2021-01-04 14:33:35.343 WARN [pool-5-thread-1] com.zaxxer.hikari.pool.ProxyConnection:161 - HikariPool-1 - Connection com.mysql.cj..
